V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

EIDE
       Enhanced Integrated Drive Electronics (HDD, IDE), "E-IDE"


The Free On-line Dictionary of Computing (30 December 2018):

Advanced Technology Attachment Interface with Extensions
ATA-2
EIDE
Enhanced IDE
Enhanced Integrated Drive Electronics
Fast ATA
Fast ATA-2

    (ATA-2, Enhanced Integrated Drive
   Electronics, EIDE) A proposed (May 1996 or earlier?)
   standard from X3T10 (document 948D rev 3) which extends
   the Advanced Technology Attachment interface while
   maintaining compatibility with current IBM PC BIOS
   designs.

   ATA-2 provides for faster data rates, 32-bit transactions and
   (in some drives) DMA.  Optional support for power saving
   modes and removable devices is also in the standard.

   ATA-2 was developed by Western Digital as "Enhanced
   Integrated Drive Electronics" (EIDE) around 1994.
   Marketroids call it "Fast ATA" or "Fast ATA-2".

   ATA-2 was followed by ATA-3 and ATA-4 ("Ultra DMA").

   (2000-10-07)